Unreal Engine has different approaches to parallelize your code and one of them is ParallelFor. It is used when it is necessary to execute code multiple times with different number-based inputs, basically what a regular for loop does. But unlike a regular for loop that executes sequentially, ParallelFor runs on different threads, with possible different order of execution. Let’s say our task is to simply sum the values from the TArray<int32> array....

Some developers are wondering about the C++ equivalent of the Delay node in Blueprints. There are two ways to implement Delay that are very similar. Use the option that is more readable and convenient for you. Lambas Using FTimerDelegate FTimerDelegate TimerDelegate; TimerDelegate.BindLambda([&] { UE_LOG(LogTemp, Warning, TEXT("This text will appear in the console 3 seconds after execution")); }); FTimerHandle TimerHandle; GetWorld()->GetTimerManager().SetTimer(TimerHandle, TimerDelegate, 3, false); Using FTimerHandle only FTimerHandle TimerHandle; GetWorld()->GetTimerManager().SetTimer(TimerHandle, [&]() { UE_LOG(LogTemp, Warning, TEXT("This text will appear in the console 3 seconds after execution")); }, 3, false); Separate functions The second way is to use a delay to execute another function....

In this quick tutorial, I will show you how to completely disable Tonemapper without using PostProcess To do this, just open the DefaultEngine.ini file (in the [PROJECT_NAME]/Config folder) and add the following lines to [/Script/Engine.RendererSettings] section: r.TonemapperGamma = 0 r.TonemapperFilm = 0 r.Tonemapper.Quality = 0 r.ToneCurveAmount = 0 r.Mobile.TonemapperFilm = 0 r.MobileTonemapperUpscale = 0 r.EyeAdaptationQuality = 0 r.EyeAdaptation.ExponentialTransitionDistance = 0 You can also write the same to the engine’s command line, but I recommend to directly add these lines to a file since it’s more convenient and will always work....

There are multiple ways to reduce the build size. But on mobile platforms, this issue is most acute. I will show you how I managed to reduce the size of my Android game from 150MB to 50MB. Project settings There are many switches in the project settings that will help reduce the build size. The first thing you can do is set Build Configuration to Shipping and enable For distribution:...

This article may be helpful for those who are familiar with standard containers and would like to learn Unreal-specific ones, or for those who already have a knowledge of the containers but would like to explore them a little deeper. Here is information about the following containers: TArray, TSet, TMap, and a basic overview of the TMultiMap and TSortedMap. TArray Let’s start with TArray. TArray is a dynamically sized array, similar to std::vector in the standard library....